頁岩氣對台灣化石業的影響與建議 / As America successfully explore shale gas and eagerly discuss its application from gas exporting to petrochemical industry downstream feedstock, shale gas comprehensive influence has made its self a hot topic since 2010. One third of Taiwan gas is from Malaysia and Qatar with importing cost around USD13-15/mmBTU, which are mostly used for power generation and domestic use and few are used for petrochemical industry because gas cost is too high comparing with naphtha. However, shale gas has brought down gas price to below USD4/mmBTU that provides a competitive advantage for America manufacturers and changes production method from naphtha to gas for petrochemical industry crackers. On the contrary, Asian petrochemical industry which are naphtha based crackers will face competition from America makers who has cheaper production cost and over supplied in domestic market and looking for international market. Taiwan petrochemical industry, dominated by two major petrochemical companies, is facing several difficulties including limited space for capacity expansion and furious competition from China and ASEAN. We will explore the possibility for Taiwan to import shale gas and any solutions to improve our situation.